NHIDCL/RO/AN/FY 2024-25/01

Amount

Laying and Jointing PVC Pipe. Heading

Providing running & maintenance of Hydraulic Excavator (3D) with driver on Daily basis: for rescue vehicle which is getting stuck on Nhand also filling suitable material in cavities and drain clearance etc during rainy season/monsoon.

Clearing jungle including uprooting of rank vegetation, grass, brush wood, trees and saplings of girth up to 30 cm measured at a height of 1 m above ground level and removal of rubbish up to a distance of 50 m outside the periphery of the area cleared.: for cleaning of Shoulders of NH-04.

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, lift upto 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m. : for excavation of Earthern Drain

Construction of 230 mm thickness Rubble Soiling work using mechanical means with boulders size ranging from 200 mm to 50 mm and surface finishing with coarse sand including all lift leads, preparing the bedding surface, surface finish of soling , compaction of soling layer etc complete in all respect.: including removal of slush, excavation for box, and compaction (For filling of boulders in marshy area)

Construction of granular sub-base of 150 mm thickness by providing close graded Material conforming to specifications, mixing in a mechanical mix plant at OMC, carriage of mixed material by tippers to work site, for all leads & lifts, spreading in uniform layers of specified thickness with motor grader on prepared surface and compacting with vibratory power roller to achieve the desired density, complete as per specifications and directions of Engineer-in-Charge. With material conforming to Grade-I (Size range 75 mm to 0.075 mm) having CBR Value-30.

Supplying & laying of drainage composite for use, between two different fills, Geotextile 120 grams per sqm membrane, supplied in the form of roll for easy transportation to site of work as per detailed specification all complete as per directions of Engineer in charge.: Geo-textile used in marshy areas to prevent water infiltration into the subgrade

Supplying & laying of bi-axial extruded high modulus polypropylene geogrid coforming to MORTH SPECIFICATION for base/sub-base reinforcement having minimum tensile strength 20kN/m in the longitudinal and transverse direction, with 7kN/m and 14kN/m tensile strength at 2% and 5% strain respectively in the longitudinal and transverse direction, junction efficiency not less than 95% and with 38mm X 38mm mesh opening

Supplying & laying of Geo cells: Depth 150 mm: "Geo Cells used in the marshy area to enhance the strength of the sub-base

Construction of dry lean cement concrete sub base over a prepared sub-grade with coarse and fine aggregate conforming to IS:383, the size of coarse aggregate not exceeding 25 mm, aggregate cement ratio not to exceed 15:1, aggregate gradation after blending to be as per specifications, cement content not to be less than 150 Kg/cum, optimum moisture content to be determined during trial length construction, concrete strength not to be less than 10 Mpa at 7 days, mixed in a batching plant, transported to site, for all leads & lifts, laid with a mechanical paver, compacting with 8-10 tonne vibratory roller, finishing and curing etc. complete as per direction of Engineer?in- charge. (DLC)

k thankachan & sons

CSE CONSTRUCTION INDIA PRIVATE LIMITED

Surendra Infrastructure Pvt. Ltd.